Question

write the name and symbol of the constituent elements and indentify thier valencies from the mouclear formula​

Answer 1

Answer:

KCl Potassium chloride K,Cl K=1,Cl=1

HBr Hydrogen bromide K,Br K=1,Br=1

MgBr

2

Magnesium bromide Mg,Br Mg=2,Br=1

K

2

O Potassium oxide K,O K=1,O=2

NaH Sodium hydride Na,H Na=1,H=1

CaCl

2

Calcium chloride Ca,Cl Ca=2,Cl=1

CCl

4

Carbon tetrachloride C,Cl C=4,Cl=1

HI Hydrogen iodide H,I H=1,I=1

H

2

S Hydrogen sulphide H,S H=1,S=2

Na

2

S Sodium sulphide Na,S $Na = 1, S = 2$$

FeS Iron(II) Sulfide Fe,S F=2,S=2

BaCl

2

Barium chloride Ba,Cl B=2,Cl=